Now it wasn’t long ago when the first malicious iPhone worm appeared in the wild and well generally since the boom of the device people have looking at the security measures.
Huge sales are made to corporates touting the security, privacy and encryption features of the iPhone OS. The latest discovery is that using a PIN on your iPhone 3GS really doesn’t protect you from anything as long as the person has physical access to your phone.
But then the same thing goes for desktop/laptop computers too, if someone has physical access you’re done for.
Using a four-digit PIN to lock your iPhone doesn’t really protect your data, security and IT blogger Bernd Marienfeldt has discovered. In an article describing the iPhone’s business security framework, Marienfeldt has found a “data protection vulnerability” in Apple’s iPhone 3GS.
Marienfeldt, working with security expert Jim Herbeck, has been able to reproduce the vulnerability on at least three non jail-broken iPhone 3GS handsets with different iPhone OS versions installed (including the latest). All tested iPhones were protected with a four-digit PIN.
In Marienfeldt’s own words:
“The unprotected iPhone 3GS mounting is “limited” to the DCIM folder under Ubuntu < 10.04 LTS, Apple Macintosh, Windows 2000 SP2 and Windows 7. The way Ubuntu Lucid Lynx handles the iPhone 3GS [6,7,8] allows to get more content (please do make sure that the native Ubuntu system is fully up to date, e.g. "apt-get update, "apt-get upgrade" - any virtualization based solution will not work as described). I used the Alternate CD with x86 and AMD64 on different hardware."
I guess with phones/embedded system we expected the user data to a little more secure and well we guessed wrongly. With a total of 33.75 million iPhones sold up to Q4 2009 that’s a staggering amount of vulnerable devices out there.
Another issue is Apple haven’t as yet worked out what the problem is, they’ve given some vague mentions of “race conditions” or “a pairing issues” but haven’t been able to reproduce it so far.
Other people have had varying success in exploiting the flaw, it seems to depend on the actual iPhone itself rather than anything else.
Basically, plugging an up-to-date, non jail-broken, PIN-protected iPhone (powered off) into a computer running Ubuntu Lucid Lynx will allow the people to see practically all of the user’s data–including music, photos, videos, podcasts, voice recordings, Google safe browsing databases, and game contents. The “hacker” has read/write access to the iPhone, and the hack leaves no trace.
According to Marienfeldt, “The allowed write access could also lead into triggering a buffer overflow.” A buffer overflow could allow full write access, and full write access could potentially lead to the attacker being able to make phone calls (as far as we know, the attacker can access all of your data but they can’t make any phone calls…how reassuring).
Marienfeldt points out that this is especially an issue for corporate/business users, who “rely on the expectation that their iPhone 3GS’s whole content is protected by encryption with a passcode based authentication in place to unlock it.”
Apple has been notified of the flaw, but has yet to correct it (or give a timeline for the correction).
I hope Apple can address this phone and give a proper breakdown and explanation of why this happens, there must be some technical explanation for it and why it occurs in their so called ‘secure’ implementation.
You can read the original blog post here:
Source: Network World
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